[ Present Perfect Simple vs Continuous ]
We __________ (wait) for the bus for 20 minutes.
A. have waited
B. have been waiting
Select your answer:

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Grammar › ViewOn Saturdays, the committee _____ in the library.
A. meets
B. meet
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____ new technologies help the students nowadays?
A. Can be
B. Could be
C. Could have
D. Can
